Granted Patent
Utility
US 4,573,111 · App. 06/596,811
Linear light passing media having certain striped characteristics
Inventors:
Douglas J. Herst, Peter Y. Y. Ngai
Patented Case
View Patent ↗
Granted: Feb 25, 1986
Filed: Apr 4, 1984
Inventors
Douglas J. Herst
Peter Y. Y. Ngai
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.